There's a term for taking leftover budget funds in one calendar year and using them the next year, in the context of government budgeting.
I am having a brain freeze and can't remember it or find it on google. I know it's a reasonably short word (my guess is in the 5-9 letter range, 2-3 syllables) and it rhymes with a common word, possibly a food item. Don't ask me why I remember that. :-)